GSE SYSTEMS INC|4May 26, 5:01 PM ET

FELDMAN MICHAEL D 4

4 · GSE SYSTEMS INC · Filed May 26, 2009

Insider Transaction Report

Form 4

Period: 2009-05-21

GSE SYSTEMS INCGVP

FELDMAN MICHAEL D

DirectorExecutive Vice President

Transactions

Exercise/Conversion
Common Stock
2009-05-21$1.85/sh+100$185→ 4,706 total
Exercise/Conversion
Common Stock
2009-05-22$1.85/sh+3,500$6,475→ 3,706 total
Exercise/Conversion
Common Stock
2009-05-22$1.85/sh+200$370→ 3,906 total
Exercise/Conversion
Common Stock
2009-05-22$1.85/sh+500$925→ 5,906 total
Exercise/Conversion
Common Stock
2009-05-22$1.85/sh+200$370→ 6,106 total
Sale
Common Stock
2009-05-22$5.45/sh−3,500$19,075→ 2,706 total
Sale
Common Stock
2009-05-22$5.47/sh−200$1,094→ 2,506 total
Sale
Common Stock
2009-05-22$5.49/sh−100$549→ 1,006 total
Sale
Common Stock
2009-05-22$5.51/sh−200$1,102→ 306 total
Exercise/Conversion
Employee Stock Option
2009-05-21−4,400→ 10,364 total
Exercise: $1.85From: 2005-03-22Exp: 2012-03-22→ Common Stock (4,400 underlying)
Exercise/Conversion
Employee Stock Option
2009-05-21−1,500→ 8,764 total
Exercise: $1.85From: 2005-03-22Exp: 2012-03-22→ Common Stock (1,500 underlying)
Sale
Common Stock
2009-05-21$5.45/sh−1,500$8,175→ 206 total
Sale
Common Stock
2009-05-22$5.52/sh−100$552→ 206 total
Exercise/Conversion
Employee Stock Option
2009-05-21−100→ 10,264 total
Exercise: $1.85From: 2005-03-22Exp: 2012-03-22→ Common Stock (100 underlying)
Exercise/Conversion
Employee Stock Option
2009-05-22−3,500→ 5,264 total
Exercise: $1.85From: 2005-03-22Exp: 2012-03-22→ Common Stock (3,500 underlying)
Exercise/Conversion
Employee Stock Option
2009-05-22−1,400→ 3,664 total
Exercise: $1.85From: 2005-03-22Exp: 2012-03-22→ Common Stock (1,400 underlying)
Exercise/Conversion
Employee Stock Option
2009-05-22−500→ 3,064 total
Exercise: $1.85From: 2005-03-22Exp: 2012-03-22→ Common Stock (500 underlying)
Exercise/Conversion
Common Stock
2009-05-21$1.85/sh+1,500$2,775→ 6,206 total
Sale
Common Stock
2009-05-21$5.40/sh−4,400$23,760→ 1,806 total
Sale
Common Stock
2009-05-21$5.41/sh−100$541→ 1,706 total
Exercise/Conversion
Common Stock
2009-05-22$1.85/sh+1,400$2,590→ 5,306 total
Exercise/Conversion
Common Stock
2009-05-22$1.85/sh+100$185→ 5,406 total
Exercise/Conversion
Common Stock
2009-05-22$1.85/sh+100$185→ 6,206 total
Sale
Common Stock
2009-05-22$5.49/sh−1,400$7,679→ 1,106 total
Sale
Common Stock
2009-05-22$5.50/sh−500$2,750→ 506 total
Exercise/Conversion
Employee Stock Option
2009-05-22−100→ 3,564 total
Exercise: $1.85From: 2005-03-22Exp: 2012-03-22→ Common Stock (100 underlying)
Exercise/Conversion
Employee Stock Option
2009-05-22−200→ 2,864 total
Exercise: $1.85From: 2005-03-22Exp: 2012-03-22→ Common Stock (200 underlying)
Exercise/Conversion
Common Stock
2009-05-21$1.85/sh+4,400$8,140→ 4,606 total
Exercise/Conversion
Employee Stock Option
2009-05-22−200→ 5,064 total
Exercise: $1.85From: 2005-03-22Exp: 2012-03-22→ Common Stock (200 underlying)
Exercise/Conversion
Employee Stock Option
2009-05-22−100→ 2,764 total
Exercise: $1.85From: 2005-03-22Exp: 2012-03-22→ Common Stock (100 underlying)

Holdings

Employee Stock Option
Exercise: $5.95Exp: 2018-10-23→ Common Stock (25,000 underlying)
25,000
Employee Stock Option
Exercise: $1.61Exp: 2013-03-14→ Common Stock (80,000 underlying)
80,000

Footnotes (2)

[F1]Exercisable as follows: 32,000 3/14/2007; 24,000 3/14/2008; 24,000 3/14/2009
[F2]Exercisable as follows: 3,571 10/23/2009; 3,571 10/23/2010; 3,572 10/23/2011; 3,571 10/23/2012; 3,572 10/23/2013; 3,571 10/23/2014; 3,572 10/23/2015

Documents

1 file

4
doc1.xmlPrimary
FORM 4